超高压带电作业中玻璃钢热棒闪络的解决进展

Conference Record of the 2004 IEEE International Symposium on Electrical Insulation Pub Date : 2004-09-19 DOI:10.1109/ELINSL.2004.1380690

W. McDermid, D. Swatek, J. Bromley

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引用次数: 14

摘要

1997年，一根玻璃钢热棒在550千伏交流电的带电线路工作中闪过。尽管热棒的维修和测试有所改善，但在2002年的类似工作中发生了第二次闪过。据信，低水平的地表污染是导致最近的闪燃的原因。实验室试验表明，FRP热棒的泄漏距离需要大大大于最小气隙接近距离。

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Progress in resolving flashovers of FRP hot sticks during EHV live line work

In 1997 a FRP hot stick flashed over during live line work at 550 kV AC. In spite of improvements in the maintenance and testing of the hot sticks, a second flashover occurred during similar work in 2002. A low level of surface pollution is believed to have been the cause of the more recent flashover. Laboratory tests have shown that the leakage distance of the FRP hot stick needs to be substantially greater than the minimum air gap approach distance.

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Conference Record of the 2004 IEEE International Symposium on Electrical Insulation

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